Adding-machine



H. C. PETERS.

ADDING MACHINE APPLICATION min DEC-28, 1911.

1,,386O22 Patented Aug. 2, 1921.

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H. C. PETERS.

ADDING MACHINE- APPLICATION FILED DEC-28, I917.

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ADDING MACHINE.

APPLICATION FILED DEC-28, I917.

Patented Aug. 2, 1921'.

5 SHEETS SHEET 5- $4, Qttoamna S UNITED STATES PATENT OFFICE.

HEBER C. PETERS, OF NEW YORK, N. Y., ASSIGNOR TO PETERS-MORSE MANUFAC- TURING CORPORATION, A CORPORATION OF NEW YORK. I

ADDING-MACHINE.

Patented Aug. 2 1921.

Original application filed November 29, 1915, Serial No. 133,846. Divided and this application filed December 28, 1917.

1 '0 all whom it may concern:

Be it known that I, Hanna C. Pn'rnns, a citizen of the United States, and a resident of the city and State of New York, have invented an Improvement in Adding-Machines, of which the following is a specification.

The present invention, while applicable to calculating machines of any character in which an operating shaft is moved by rocking a lever or handle, is especially adapted for use in connection with adding or calculating machine of that type which I have fully illustrated and described in my application filed November 29, 1915, Serial N umber 133,846, of which this application is a division.

In the machine described in said application, to promote simplicity of construction and compactness of design the cam which controls the operation of the type carrying members is arranged to operate independently of the shaft upon which it is carried. Thus, as said shaft turns in one direction the cam is not controlled by said shaft leaving the parts under control of the dashpot or other retarding means, but when the shaft turns in the opposite direction the cam is actuated simultaneously therewith and the dashpot controls the operation of the released mechanism, such as the operating handle, etc. plishing this resultand the special arrangement of the parts necessary to do this constitutes the subject of my invention, described below.

I have illustrated my invention in connection with the adding machine of my said co-pending application in the drawings annexed hereto in which:

Figure 1 illustrates a plan view of the device with the handle removed;

Fig. 2 illustrates a right side elevation with parts in normal osition, the operating handle being shown otted;

Fig. 3 illustrates a right side elevation showing the position assumed by the parts when the handle is moved to its forward position;

Fig. 4 illustrates a right side elevation, shown partly in section taken on the line The mechanism for accom Serial No.'209,251.

of Fig. 1 with the parts in normal pothe machine may be obtained from my said copending application.

The main shaft or handle shaft 1 having bearings in the side frames 2 and 3, has rigidly fixed to it the master plate 4, one portion of which is a segment. A fixed stud 5 projects from plate 4, said plate .4 having a hub portion 4 and slotted at 4. A stud 6 is' fixed to the arm 7, mounted on the shaft 8. Loosely mounted on studs 5 and 6is the long link 9, one end of which is supported by stud 6, the other end being forked and straddling stud 5. Forked plates 10, positioned in a vertical plane, are mounted loosely on studs 5 and 6 respectively and are linked together by the springs 11 one above the other for economy of space, the tension serving to hold the stud 5 in contact with the edge or wall at the bottom of fork in link 9. By these means an elastic connection is established between the shafts 1 and 8. Loosely mounted on the stud 12, fixed in the plate 4, is the link 13, one end of which is loosely connected by the stud 14 to the link 15. The spring 16, shown dotted in F igs. 2 and 3, has one end fixed to the plate 4, the other to the link 13. Link 15 has its rear end supported by stud 17 fixed in side frame 2. Thus the links 13 and 15 formv a toggle, which is straightened as the plate 4 is swung forside frame 2. The three centers of the studs supporting and connecting the links 13 and 15 would then normally be in a straight line, but due to a slightly loose fitting of stud 14 in the hole in link 13, the tension of the spring 16 will lift the ends of links 13 and 15 upward slightly beyond the center, this upward motion being limited by the contact of the link 15 with the pin 18 fixed in the side frame. lVith the parts in this position, the handle 19 detachably secured to shaft 1 is locked and can not return to normal until links 13 and 15 have been depressed sufficiently to allow them to collapse. This is normally accomplished by the pin 20, fixed in the link 9, which pin has a forward and downward movement and which at the end of its movement will contact with the edge of the link 15, forcing the same downward and breaking the lock. By this means, if the forward rocking of the shaft 1 is more rapid than the forward rocking of the shaft 8, as determined by the dash-pot control to be described later, the springs 11 of the elas tic connection will be stretched and the stud 5 will move forward in the slot of link 9. hen the shaft 1 has been rocked to its maximum forward position, the toggle joint will lock the plate 4: until the shaft 8 has reached its maximum forward position, at which time the pin 20 on the link 9 will contact with the link 15, forcing same downward, thus breaking the toggle lock, allow- 1H0 the shaft 1 to be returned to normal.

The wipe pawl 21 is loosely mounted on the stud 22 fixed in the side frame 2. One end of spring 23 is fastened to pawl 21, its other end being fastened to the side frame 2, its tension normally holding the pawl 21 in the position shown in Figs. 2 and 3. On the forward movement of the plate at, the pawl 21 will engage the usual notches in the concentric edge of plate 4, preventing its return until the pawl has passed by the proection P of said master plate and sprung into the recess l of said plate 4 (see Fig In this position the plate lmay be returned to normal if the toggle lock has been broken by the pin 20 as previously described. At the right of the machine, as viewed in Fig. 5 pinned to the shaft 8, is the arm 24 (see Fig. 5), its outer end having a stud 25, to which a link 26 is loosely connected. A lever 27 is loosely supported at one end on shaft 1, and at the other end by link 26, to which it is loosely connected by stud 28. To a projecting portion of the lever 27 an oil dash-pot 29, of familiar construction, is connected by the stud 30 (see Fig. 3). Instead of a dash-pot any other suitable speed governin device may be used, such, for instance, as a centrifugally operated friction brake. The plunger rod 29 of the dashpot 29 is connected to the side frame 3 by 1. To depending arm 32",

the stud 31 (see Figs. 1 and 2). It will thus be seen that the rocking of the shaft 8 will rock the arm 2a, which in turn, through the connections of link 26, will move the lever 27 up and down. which movement will cause the dash-pot to be moved up and down, said dash-pot being adjusted to regulate the speed of movement of shaft 8 and all parts of the machine, the movement of which is controlled by said shaft 8.

The cam 32 is loosely mounted on the shaft is loosely connected a link 33 by stud 34. The other end of link 33 is loosely connected by stud 35 to depending arm 36 of cam 36 pinned to shaft 8. It will thus be seen that the rocking movement of cam 32 during its forward movement will be controlled through the connecting link 33 by the rocking movement of shaft 8 which in turn, as has been explained, is governed by dash-pot 29, whereby all the mechanism depending for operation upon cam 32 is brought under the control of the dash-pot 29.

Pinned to the shaft 1 is the lever 37 (see Fig. f), one end having a projecting lip 37 which overlaps and contacts. with the forward edge of the cam 32, the other end of said lever being connected to main spring 38, said spring having its other end'connectedto spring stud 39 fastened to base A. It is..arranged that rocking the shaft 1 will rock lever 37 and stretch main spring 38,

storing energy sufficient to operate the machine on its return stroke. This forward movement of lever 37 with shaft 1 is an idle movement as respects cam 32, allowing the cam to be controlled through the connecting link 33 by the dash-pot 29, but during the return stroke of lever 37, its lip 37 contacts with the edge of cam 32, forcing said cam 32 to its rearward or nor mal position. It will be evident that the return of the cam 32 can as well be accomplished by the link 33 if the dimensions of said link make it suitable for this purpose, and while I prefer to use the arm 37 for the return of the cam 32 as indicated, it is not essential that I do so. It will alSO be noted that the interlocking of lever 37 and cam 32 on the return stroke of the handle puts the handle and its associated mechanism into operative *connection with the dash-pot 29 and so governs the return stroke. The operating handle and its associated mechanism may also-be put under control of the dash-pot by the engagement of pin 5 carried upon master plate 4 with link 9. It will be understood that the toggle controlling the backward movement of the master plate is broken only when link 9 is moved to such a position that pin 20 engages the toggle. In this position pin 5 will bottom in the slot in the forward end of link 9.

operated by the movement of the first Diverging levers 40' are held n their rearward position by the L-shaped cross bar 41, the respective ends of which are fixed in swinging arms 42, said arms being pinned to shaft 43 (see Fig. 4). The forward movement of the operating mechanism of the machine causes the cam 32, through the connecting link 33 to move from the position shown in Fig. 4 to that shown on Fig. 5, which movement allows the cam: roll 45 to follow the surface of cam 32 from the face 32 to 32*, thus allowing the levers 40 to swing forward under tension of the springs 46, said tension being exerted by reason of the attachment of spring 46 to stop bars 47, which in turn are connected to lever 40 by studs 48 (see Fig. 4). Connected to the rear end of diverging levers 40 b bars 50 which are raised to their various positions as the diverging lever 41 swings forward. It will thus be evident that the movementof the type bars 50, through the mechanism described, is under the control of the dash-pot 29.

It will be understood that the stop bars are arrested by depressed keys and that they thus measure the movement of the racks 51 attached to the upper arms of the diverging levers 40 and that a registration is thus made upon the wheels 52. The specific means by which these functions are performed do not form a. part of this invention, however, being fully described and claimed in mv said co-pending application, and any suitable means for causing registrations may be combined with the governing mechanism herein described.

\Vhat I claim is:

1. In an adding machine, a main operating shaft, type carriers, a member loosely mounted upon said shaft for controlling the movement of said type carriers, and means connecting said main shaft and said member to enable said member to be operated at a varying rate of movement with respect to the forward movement of said main shaft.

2. In an adding machine, a main operating shaft, type carriers, a member loosely mounted on said main shaft for controlling the movement of said type carriers, and meansincluding an elastic connection for linking said member to said main shaft, en-,

abling said member to be'operated with a varying rate of movement with respect to the forward movement of said main shaft.

3. In an adding machine, a main shaft, a

second shaft, a speed governing device connected to said second shaft and operating to control the rate of movement of said second shaft, a flexible connection between the two shafts, whereby the second shaft may be shaft but at a varying rate of movement, a cam loosely mounted on the main shaft and connecting means between said cam and said link 49 are the type second shaft, enabling said cam to be moved at a rate of movement varying from the rate of movement of said main shaft when said main shaft is operated.

4. In an adding machine, a main shaft carrying an operating lever, a second shaft, speed governing means connected to said second shaft and operating to control the rate of movement of said second shaft, a flexible connection between the two shafts, whereby the second shaft may be operated by the movement of the first shaft but at a varying rate of movement, a cam loosely mounted on the main shaft and connecting means be tween said cam and said second shaft, enabling said cam to be moved at a rate of movement varying from the rate of movement of. said main shaft when said main shaft is operated by said operating lever.-

i In an adding machine, a main operating shaft, a main spring connected thereto and operating to impart motion to said shaft on its backward movement, a cam mounted on said main shaft and capable of movement varying from the movement of said main shaft during the forward movement of said main shaft and said cam and means for imparting movement to the cam on the backward movement of said main shaft.

6. In an adding machine, a main shaft, a second shaft, means operated by the main shaft for imparting movement to the second shaft, a cam loose upon the main shaft and -means controllable by the second shaft for governing the rate of movement in a forward direction of said cam and independentlv of the rate of movement of the main shaft.

7. In an adding machine, a plurality of shafts, one of which is a main shaft adapted to be operated at an accelerated speed with respect to the other shaft, yieldable means operated by the main shaft for imparting movement to said other shaft, a cam loosely mounted on the main shaft, means controlled by said other shaft for governing the movement of the cam independently of the speed of the main shaft when moving in one direction and means for effecting movement of. a

mounted on the main shaft and connecting means between said cam andsaid second shaft, enabling said cam to be moved at the rate of movement of said second shaft.

9. In an adding machine, a main shaft, a second shaft, a compensating speed connection between the two shafts, a cam loosely supported upon said main shaft and capable of action independent of said main shaft upon the movement of the latter in a forward direction, means governed by the second shaft and operatively related to said cam for controlling the same during the forward independent movement of the main shaft and means for moving the'cam with the main shaft during the rearward movement of the latter.

7 10. In an adding machine, a main shaft, a second shaft, a speed governing device connected to said second shaft and operating to control the rate of movement thereof, a member loosely mounted upon the first shaft and rigidly connected to the second shaft, a yielding connection between the main shaft and the second shaft whereby movement of the main shaft may be imparted to the sec- 0nd shaft and a second member fixedly mounted upon the main shaft and adapted to engage the first member mounted thereon to place the first shaft under control of the speed governing means during a portion of its movement.

11. In an adding machine, a main shaft carrying an operating lever, a second shaft. means connected to said second shaft and operating to control the rate of movement of said second shaft, a connection between the two shafts whereby the second shaft may be operated by the movement of the first shaft but at a varying rate of movement, a cam loosely mounted on the main shaft and connecting means between said cam and said second shaft, enabling said cam to be moved at a rate of movement varying from the rate of movement of said main shaft.

12. In an adding machine, a main operating shaft, a main spring connected thereto andoperating to impart motion to said shaft in one direction, a cam mounted on said main shaft and capable of movement varying from the movement of said main shaft during the movement of said main shaft and said cam in another direction and means for imparting movement to the cam on the movement of said main shaft by said main spring.

13. In an adding machine, a main shaft and second shaft, means operated by the main shaft for imparting movement to the second shaft, type bars adapted to be set by the movement of the main shaft, a cam loosely mounted upon the main shaft for controlling said type bars and means for governing the rate of movement of said cam independently of the rate of movement of said main shaft but dependent on the movement of said second shaft.

14. In an adding machine, a shaft, a sec- 0nd shaft, a speed governing device operating to control the rate of movement of the second shaft, a member loosely mounted upon the first shaft and rigidly connected to the second shaft, a yielding connection between the first shaft and the second shaft whereby movement of the first shaft may be imparted to the second shaft and a second member mounted upon the first shaft and adapted to engage the first member mounted thereon to place the first shaft under control of the speed governing means during a portion of its movement.

15. In an adding machine, a main operating shaft, type carriers, a cam loosely mounted upon said shaft for controlling the movement of said type carriers, and means including a non-positive connection forlinking said cam with said shaft, to enable said cam to be operated at a varying rate of movement with respect to the forward movement of said shaft.

16. In an adding machine, a main operating shaft, type carriers, a member loosely mounted on said shaft for controlling the movement of said-type carriers, means including a non-positive connection for linking said member to said main shaft, and a speed governing device connected to said member to control the rate of movement thereof, said variable connection permitting said member to be moved at the rate of speed determined by said governing device and independently of the rate of movement of said main shaft.

17. In an adding machine, a main operating shaft, :1 main spring connected thereto and operating to impart a backward movement to said shaft, a cam mounted on said main shaft and capable of movement at a rate independently of the rate of movement of said main shaft during the forward movement thereof, and means mounted on said main shaft for interlocking with said cam on the return movement of said shaft for imparting backward movement to said cam.

18. In an adding machine, a main operating shaft, a main spring connected thereto and operating to impart motion to said shaft on its backward movement, a speed governing device, a cam mounted on said main shaft and connected to said governing device, said cam being capable of movement at a rate controlled by said governing device and independent of the rate of movement of said main shaft during the forward move ment thereof, means for imparting movement to said cam during the backward movement of said main shaft whereby the rate of backward movement of said cam and said main shaft is controlled by said governing device.

19. In an adding machine, a main operat ing shaft, a main spring connected thereto and operating to impart motion to said shaft on it backward movement, a speed governing evice, a cam mounted on said main shaft and connected to said governing device, said cam being capable of movement at a rate controlled by said governing device and independent of the rate of movement of said main shaft during the forward movement thereof, and means rigidly mounted upon said main shaft for interlocking with said cam upon the backward movement of said shaft, thereby to impart a backward movement to said cam and to permit said governing device to control the rate of backward movement of said cam and main shaft. 10 In witness whereof, I have signed my name to this specification this 24th day of December, 1917.

HEBER C. PETERS. 

